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    HIGH-STRENGTH CHEMICALLY RESISTANT THIN SHEATH FIBERS AND METHODS OF MANUFACTURE
    1.
    发明申请
    HIGH-STRENGTH CHEMICALLY RESISTANT THIN SHEATH FIBERS AND METHODS OF MANUFACTURE 审中-公开
    高强度耐化学品薄膜纤维和制造方法

    公开(公告)号：WO2003004738A1

    公开(公告)日：2003-01-16

    申请号：PCT/US2001/041240

    申请日：2001-07-03

    申请人： HONEYWELL INTERNATIONAL INC. ,  ZHOU, Qiang ,  LOBOVSKY, Alex ,  MATRUNICH, Jim ,  TWOMEY, Conor ,  MCGRATH, Barbara

    发明人： ZHOU, Qiang ,  LOBOVSKY, Alex ,  MATRUNICH, Jim ,  TWOMEY, Conor ,  MCGRATH, Barbara

    IPC分类号： D01F8/00

    CPC分类号： D01F8/10 ,  D01F8/06 ,  D01F8/12 ,  D01F8/14

    摘要： Compositions and methods are directed to a sheath core fiber with a core and a sheath that comprises a fluoropolymer. Contemplated sheath materials include PVDF, ECTFE, and ETFE, and may have an apparent shear viscosity equal to or less than the apparent shear viscosity of the core material. Especially contemplated sheaths have a weight of 30% or less of the weight of the fiber. Preferred fibers are spun in a spin pack having a sheath material conduit with a ratio of open volume to sheath material mass flow of less than 0.75 for a fiber with a 30wt% sheath, of less than 1.15 for a fiber with a 20wt% sheath, and of less than 2.30 for a fiber with a 10wt% sheath.

    摘要翻译： 组合物和方法涉及具有包含氟聚合物的芯和鞘的皮芯纤维。 考虑的护套材料包括PVDF，ECTFE和ETFE，并且可以具有等于或小于芯材料的表观剪切粘度的表观剪切粘度。 特别设想的护套具有纤维重量的30％或更小的重量。 优选的纤维在具有护套材料管道的纺丝组件中旋转，对于具有30重量％护套的纤维，具有20重量％护套的纤维的小于1.15的开口体积与护套材料质量流量的比率小于0.75， 对于具有10重量％护套的纤维，小于2.30。